Fractals everywhere
Introduction to statistical pattern recognition (2nd ed.)
Introduction to statistical pattern recognition (2nd ed.)
The Induction of Dynamical Recognizers
Machine Learning - Connectionist approaches to language learning
Analog computation via neural networks
Theoretical Computer Science
Hippocampal LTP depends on spatial and temporal correlation of inputs
Neural Networks - 1996 Special issue: four major hypotheses in neuroscience
Emergence of sequence sensitivity in a hippocampal CA3-CA1 model
Neural Networks
Model-based learning for mobile robot navigation from the dynamicalsystems perspective
IEEE Transactions on Systems, Man, and Cybernetics, Part B: Cybernetics
Simple model of spiking neurons
IEEE Transactions on Neural Networks
The computational power of interactive recurrent neural networks
Neural Computation
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Recent studies suggest that the hippocampus is crucial for memory of sequentially organized information. Cantor coding in hippocampal CA1 is theoretically hypothesized to provide a scheme for encoding temporal sequences of events. Here, in order to investigate this Cantor coding in detail, we construct a CA1 network model consisting of conductance-based model neurons. It is assumed that CA3 outputs temporal sequences of spatial patterns to CA1. We examine the dependence of output patterns of CA1 neurons on input time series by taking each output and combining it with an input sequence. It is shown that the output patterns of CA1 were hierarchically clustered in a self-similar manner according to the similarity of input temporal sequences. The population dynamics of the network can be well approximated by a set of contractive affine transformations, which forms a Cantor set. Furthermore, it is shown that the performance of the encoding scheme sensitively depends on the interval of input sequences. The bursting neurons with NMDA synapses are effective for encoding sequential input with long (over 150 ms) intervals while the non-bursting neurons with AMPA synapses are effective for encoding input with short (less than 30 ms) intervals.